In 1912, Main Street was still a dirt road, making it difficult for cars to navigate downtown streets. Worried about losing business, local business leaders spearheaded the effort to incorporate as a city. Among the group was Harry Spencer, head of the Business Men’s Association.
In October 1914, Walnut Creek residents voted to incorporate. It took seven more years to secure the funds -- but, finally, Main Street was paved in 1921.